In the article titled “Thyroid Hormone Changes in the Northern Area of Tianjin during the COVID-19 Pandemic” [1], the affiliation of Tan Jian was previously listed incorrectly as 1Department of Nuclear Medicine, Tianjin Fourth Central Hospital, The Fourth Central Clinical School, Tianjin Medical University, Tianjin 300140, China. The correct affiliation is 2Department of Nuclear Medicine, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin 300052, China. The affiliation has been corrected as above.